| abstract |
The invention relates to novel chimeric antibiotics of formula I n n n n n n n n n n whereinn R 1 is CH 2 NHCOR 5 , heteroarylmethyl, heteroaryloxymethyl or heteroarylaminomethyl; R 2 is H, OH, OSO 3 H, OPO 3 H 2 , OCH 2 OPO 3 H 2 , OCOCH 2 CH 2 COOH, OCOR 6 ; R 3 is H or halogen; R 4 is (C 1 -C 3 )alkyl, (C 1 -C 3 )haloalkyl or cycloalkyl; R 5 is alkyl or haloalkyl; and R 6 is the residue of a naturally occurring amino acid or of dimethylaminoglycine. nn These chimeric compounds are useful in the manufacture of medicaments for the treatment of infections (e.g. bacterial infections). |